Pneumatic-despatch-tube apparatus.



A. W. PEARSALL. EUMATIC DESPA vPN TGH TUBE APPARATUS.

APPLICATION FILED JAN,28,1907.

Patented June 30, 191i 2 SHEETS-#SHEET I.

IH/a' risul A. w. PBARSALL. Mmmm@ www-H TUBE APPARATUS. AH'LUATION FLED JANZS, 1907. 1,1()2225 Patented June 30,1914.4

2 SHBETS-SHEET Z. i250.

UNITED STATES PATENT oEEIoE ALBERT W. PEARSALL, OF IzOV'llslIlZlL, MASSGHUSETTS, SSIGNOR TO l'ukhrISONlO'hI- specification of Letters Patent. Paxtented-June, 1914.

pplicationled January 28, "1907. Serial No. 3543-111 selective despatching terminals thereof.

The inain object of my invention isto rer-- -ccite n carrier selectively arranged and eject lor tip it out of `=the mouthpiece or receiver,l also peru'xittlng the reception o fen ordinary;y or non-selective carrier, allowing vthe same' tc pass through without operating the selective device.

eomplish the selection of carriers unaffected by pneumatic `force, as heretofore sind pneunzn'tic force,vbeing varible, has been" unreliztblc. Means arealso supplied whereby any, number of carriers following 'closely upon.t

one another are separated and spaced ttllow- 4ing the selection of the carriers Aindividually unaffected oy those following. y'

I n the-accompanying 'drawings which illus` mite aconstruction*embodying-my invention, Figure, 1-

nv vertical section of the device on the line X X Fig. 2 looking'in the-direc-A tion indicated by fthe arrow; lFig. i. isn rear elevation showing thefdevice used in con# junction with an iordinal-ryV receiving terminel and showing the selective mechanism inv section on. line Y Y` Fig. 1 ilooking; in the direction indicated by the arrow. 'Fig'. 3 is a perspective view of :the separating 'and selecting device somewhat mounted. Fig. 4 is 'a perspective viewof .e selectivecnrrier. Fig. 5 is a perspective view of en ordinary or nolrselectivef'cen construction' of the elastic select-ive `projecting plug.

'Like letters of reference rfer to vlike partsthroughout the several views.

The receiving terminal S is connected to el regular circuit oftube, the tube Q, forxn'ingeJ part of the circuit 'betwen the saiclterrninal und thereceivin box T which is connected tri'- nnother receiving terminal, which 4inl turn, .is'f'bnected lto "th source ,of eir supply;

stri-nies the erdimry cerner *having nasser? the usual iexi'ble terminal valve or flap S@ and been 'received in'llespatching'terminal T, said carrier Av being adapted not to operate the-selective mechanism located inthe throat between the terminals and the terminal T, wil-ljbe delivered at th'e terminal connected `-to 'the source olfeirir supply.

d( Fig. 1, the non-selective carrier A 1 shown in ycontactfwitt-h the levers "B .and C v through the4 arm F and separating lever tor 'pushe a, consequently, the carrier A. will Another object of my invention is to ac pass down vto a .position :below the separate.

Jing lever G -before irny Ainotioinis imparted to said levergG. Motion will, Ihowever, bey imparted to the lever G through the medium 'of the :s ring H, which is mounted on a profjection sittu'ched 'to-the erin F and over" which,projection the lever-B is tfreeto move, la'nd which lever' B `pressing on tresqrinjg H imparts a thrust/to the arm 'Fe'ndhind the carrier Tn ft e meiitime, sid carrier A holds the levers -=B'an'd"C"de[nessed until it has passed beyond them,`-When' the spring Bixed at one endto-tzheicesing anfly zthe othei'"en d to leve'r B, causes the leves f position. The screw Fzfthreaded-in vthecns- 'm'ovemeritof said arm. The slective carrier AZ beingl released after thepassage of 'the ,"cnrxier A, will then act on the leveriC'wvhich rieri Figft isa Sectional Avievv'of thellower pcrtimixof :a selective carrier showing the is pivoted to the lever B iitd. Thep'ziwl C imparting 1a `thrustthrough 1the lever F to ythevffvveight Gtholding the lever C in proper "mgis udapted to be adjusted "toengage the 'i ."bufl'er 'F ernv arm F and limit the rtturn llill() the separe-'ting lever `G ejecting 'the carrier Z trpperfend 'foremost out'ofthe modthpiece K. 'ille ordinary 'carrier A having passed beyond 'the 'levers C 'nd B strikes on the spring L whidh imparts ,e thrust :through -the :piu M to the 'lever N actuating the jointed "over O which folds up asshown in dotted lines lFig. 1 permitting 'the vlve P to open inwardlyand introduclng the carrier A into 'tlleuir circuit 'which is maintained through the tube Q. This admissonwalve is returned toits original position and locked through the medium of the spring R acting on the rear end of the joited'lever 0;"

Fig. 6 shows a sectionvof thewselectiye de-u vice which is attached to both :ends of the carrier Z and consists of a felt buer Z of the ordinary type which is. secured to the v inverted QupZ inwhchjlis inserted a 'rubi ber packing. VZs projecting "below fthe lower bottom carrier shell by the cup Z Z. 'Telescopingwithin thejcup@ Z isN-anl edge' of the cup Z4 :indaga .se aratlng from the cupvZfby w ich is threaded intovsaid lZ?. This selective projection., is' selectivel.: operative.

'onlypfingthat it hits the-point of the lever C mediar@ ofthe im met the baar 'Z4 O theflever crearne essenziauw ,cup ze in., sures v delires'sion ,cithek lever C and the f Inv risiedere is shown i'viewef" the' e y or non-selective-y carriers, rone of the `Vmost important elements 'of whtch-lmeans 1s the combinedjpushnarni stp G which not only]v kicksfthe 4vlectiva carrier out of the mech,

farther "out o thev pa'thi of suc-'- ceeding carriersbut further serves to stop or arrest a succeeding carrier substantially-regardless of the proximity thereof to the carrier being ejected.

. I am aware, ofl course, that many changes and modicationszmay be made herein' with.y out del'aartingl from the spirit of vmy in-i vention, and

nded claims i Having thusfdescribed e nature of my invention .andset forth ,Qa construction em-` bodying the sam'ewhatl claim as new and desire to y ILetters `Patent of the ,t 1.-In Y: z-pneuil United States ist. 1

atic despatch tube apparatus, va transmission tube, a throat arrangedv to receivcsarriers emerging from said tube and .to direct' non-selective carriers Whilev in rapid movement along a determined path, positive selective means forejecting selective carriersu't of said path, and a valve for normally closing communication between said tube and throat, said selective means being substantially independent of said valve.

2. In a despatch tube apparatusa pneuwhich holds' the" bu'er- ZV to the shell by .means of the bolts-A s emerging I,Y lhence desireto be limited',- v, only by the-scope' ofithe ap matic transmission tube, a throat arranged to receive carriers einer 'ng from said tube and to direct non-selective carriers while in rapid movement along a' determined path, positive selective means for ejecting selective carriers out of lsaid remote from and substantially independent of said selective means for normally closin communication between said tube an throat, and means for leading the air current in said tube around said valve.

3. In a despatch tube; apparatus, a trans- `mission tube, selective and non-selective carriore ada ted to be propelled through said tube, a t

roat arranged to-receive carriers from said tube and having a side .discharge opening, and means, arranged in said throat, actuated by the Vimpact of a selective carrier and acting on said carrier at a point in thc'rear of its'fmiddle ortion to eject said carrier from the throat t rough said opening.

4. In' a des matic transmission. tube, means, inclu ng a guidin throat, for removing carriers from the in uence of an air current traversing said tubs, and positivel acting automatic means lfor se rating iiereut classes of carriers accor ing to their respective classes, after said carriers are substantially free vfrom the influence of said air current, said means including provisions for separating darriers regardless Vofthe sequential disposition and proximity of said carriers wlth respect to each other. y

5. In a despatch tube apparatus, a pneumatic transmission tube, means, comprising ,a valve' and a ,by-pass, for removing carriers Afrom the muence of an air current trav- .ersmg said tube, and

ositivel acting automatic means substantlally in( ependent of 'said valve for separating different classes ofcarriers, moving with substantiallyv thc speed of transmission, according to their respective classes, after said carriers ,are substantially'free from the influence of said air current.

6. -In a pneumatic, despatch tube apparatus, a transmission tube, a selective mechanism in communication with said tube and adapted to receive carriers. in transit through said tube, said mechanism comprising means independent of and out of contact with thel air current in said tube for removing selective carriers from the path of travel of non-selective carriers through said mochanism, ated pusher Vwhich normally by and during its own movement displaces selective carriers.

7. In a pneumatic .despatch tube apparatus, a transmission. tube provided with a selective echansm adapted to receive cartiers, in Eftransit, said mechanism comprising means independent of and out of consaid means including a carrier .actu-l ath,\a valve relatively patch tube apparatus, a. neutact with the air current in said ti'be for, positively propelling carriers from the path" of succeedin ceeding carrier while the preceding selective oan'ier is being propelled from said path.

9; In a despatch tube apparatus', a transmission tube 'and means for selectively assorting carriers. delivered therethrough, said means includin'g'a device for forcibly kicklng selected carriers ou't of the path of succeeding carriers and a fcarrier actuated part;

for operatin valve throug said device. l

10. In a despatch tube apparatus, a trans,- misison tube provided with a selective mechsaid kicking device, and a which said carriers pass to anism adapted t-o receivecarrirs in transit,

said mechanism comprisingmeans 'for arresting the advance of seiective carriers and means for ejecti said carriers rear end foremost'out. of t e path of non-selective carriers, "and Ia valve through which said carriers pass to said mechanism.

l1. In a despatch tube apparatus, a transmission tube provided with a selective mechanism adapted to receive carriers in transit, said-mechanism comprising means `for arresting the advance of selective carriers and a pusher which-normally by and during its own movement displaces the selective carriers out of the path of non-,selective carriers and out of sai-d apparatus.

12. Ina despatehtuhe apparatus, a` transmission tube provided with a selective mechanism adapted to receive carriers in transit, and a valve through which said carriers are delivered from said tube to said mechanism said mechanism comprising means for arresting -the advancev of selective carriers and a pusher which normally by and during its own movement displaces the tear ends of said selective carriers outrof the path of non-selectvive .carriers prior to the displacement of the `forward ends of said carriers from said path.

13. In a despatch tube apparatus, a trans-y mission. tube provided with a selective mechanlsm adapted torecewe carriers in transit, said :mechanismv ctanprising' means for ar- .restin'gthe advance o'sele'tive carriers, a

movable member and ctw-acting means for op rativelypressing said member against. ective carriers only, after the latterhave Vexagage'd saidaresting means, to eject said selective earriersfromsaid apparatus.

M despatch tube apparatus. sirens'- carriers and arresting a suc-` t mission tube provided with a selective nicchanisrn 'adapted to receive carriers in transit, said mechanism comprising means for ar.` resting the advance of selective carriersf'i'l. pusher which normally by and during its own movement.displacesthe selective carriers out of the path of non-selective carriers and out of said apparatus, and Iconnections between said pusher and arresting means for actuating said pusher thrmlgh the vinstrl-imentality of said selective carriers.

f' 15. In a pneumatic despatch tube apparatus, a transmission tube, a selective mechanism in communication with said tube and adapted to receive carriers in transit through said tube, said mechanism comprising means independent of and out loli-contact with the air current inv said tube for removing selective carriers from tho'path of travel of Inon-selective carriers through said mechanism, said means-,including a pusher which normally by and during its' own movement ej-eets selective carriers from said apparatus.

16. In a'despatch tube apparatus, a transmission t-ube, a vwlve, and'mechanism for selectively asserting carriers delivered thereto past said valve by said tube, said mechanism including means for displacing a part at least of a selective carrier out of the path of a succeeding carrier, said mechanism having provisions for stopping said succeeding carrier while the selective carrier is being removed from 1ts path and said dlsplacing means adapted to move said `part of said selective carrier substantially at right angles to said path.

17. Tn a despatch tube apparatus, a transmission tube, a valve, and mechanism for selectively asserting carriers delivered thereto past said valve by said tube, said mechanism #including means for arresting a selective carrier and displacing sideWiSe a rear part at least thereof out of the path of a succeeding carrier, at least as soon as a front part there` ofis correspondingly displaced. said mecha` nism having provisions for stopping said. succeeding carrier after it has passed said valve and while the selective carrier is being removed from its' path,

18. In a despatch tube apparatus, atransmission tube and mechanism for selectively assorting carriers delivered thereto by said tube, said mechanism "including means`for `reversing-the direction of travel of a part of each and every selective carrier delivered thereto and co-act'ing means for positively directingsaid selective carrier into a path at variance with that traveled by non-selective carriers, and substantially directly out of said apparatus. Y

19. In a despatch tube apparatus, a transvmission tube, a valve, and means for selectively assorting carriers delivered therethrough, said mechanism-including a compusher adapted to kick selected'carriers out of the path of succeeding carriers b a movement thereof and to stop a succeeding carrier when ejecting a preceding carrier, said succeeding carrier when stopped by said pusher being out of the air current passing Athrough said tube.

l 20. In adespatch tube apparatus, a transmission tube, a valve, and means below said -valve for selectively assorting carriers delivered therepast, said means including a combined pusher and stop for carriers, said pusher adapted to kick selected carriers out of the path of succeeding carriers b a. movement thereof and to stop a succee ing carrier when ejecting a preceding carrier, and means, engaged by a carrier to be ejected, for actuating said combined pusher and stop. f

21. In a despatch tube apparatus, a transmission tube provided with a selective mechanism adapted to receive carriers in transit, said mechanism comprising means for arresting the advance of selective carriers and a pusher which normally by and during its own movement displaees the selective carriers out of-the path of nonselective carriers. said mechanism also including auxiliary provisions in connection with said pusher for arresting a selective carrier closely following a non-selective carrier passing through said mechanism, where.- b v positive separation of all selective from non-selective carriers is assured.

22. In a despatch tube apparatus, a transmission tube provided with a selective meelanism adapted to receive carriers in transitI lsaid mechanism comprising a pusher which normally by and during its own movement displaces the slectivc carriersout of the path of non-selective carriers. said mechanism also includnpr auxiliary provisions in connection with said pusher for arresting a selective carrier closely following u -non selective carrier passing through said mech:

anism, whereby positive separation of allselective from non-selective carriers is aS'- sured.

23. ln'a despatch tube apparatus, a transmission tube provided with a selective mechanism adapted to receive carriers in transit, selective. and non-selective carriers, lcarriers of 'one of said classes being provided with means for spacing the head thereof from the head of a carrier of the other class' when said carriers closely follow each other through said tube. said mechanism beiner` selectively operated by said spacing means' and comprising means lfor arresting the advance of selective carriers and a pusher which normally by and, during its own movement displaees the selective carriers out of the path'of non-sele"ti\'e carriers.

24. ln a despatch tube apparatus. carriers of two classes, carries of one of said classes having spacing extensions upon the heads thereof,v a transmissionitube for said car-4 riers provided with a selective mechanism adaplted to receive carriers in transit, said mec anism being selectively operated by one of said classes of carriers andecomprismg a pusher which normally by and during its own movement displaces carriers of one of said classes out of the ath of carriers of the other class, said mechanism having provisions forarresting a carrier closely following a preceding carrier while the latter is subject to the action of said pusher.

25. In a despatch tube apparatus, carriers of two classes, carriers of one of said classes having spacing extensions upon the heads thereof, a transmission tube for said oar- Ariers provided with a selective mechanismv pat-h of carriers of' by the engagement 26. I n a despatch tube apparatus, carriers i of two classes, carriers of one of said classes having spacing extensions upon the heads thereof, a transmission tube for said carriers provided with a selective mechanism ada ted to receive carriers in transit, said mec anism being selectively operated by one of said classesof carriers and comprising a pusher which normally by and during its own movement displaces carriers of one ofssaid classes out of the path of carriers of the other class, said mechanism having provisions fdr arresting a carrier closely following a preceding carrier while the latter is subject to he action of said pusher, said mechanism a so having means for stopping a carrier in transit therepast when said.

l'carrier is subject to the action of said pusher.

27. In a. despatch tube apparatus, carriers f two classes, carriers of one of said classes having spacing extensions upon the heads thereof. a transmission' tubefornsa'id carown movement displaces carriers of one of said classes out of the path of carriers of the other class, said mechanism having provisions for arresting a carrier lclose y following a preceding .carrier while the latter is subject to the action o Suid pus-hor, said mechanism having m'eans for stopping 'a ':irrier in transit therepast when said can rier is subject to the action of said pusher, and provisions adapted to coa-ot with said last mentioned means for controlling the actuation of said pusher by said spacing extensions.

In testimony whereof, I have signed my name to this specification in the presence of :n two subscribing witnesses, this v25th day of H January A. D. 1907. y

ALBERT W. PEARSALL. Witnesses:

A. L. Mums, i, Lome G. Hmmm. 

